Question

式子-6ab²c是________（填“單”或“多”）項(xiàng)式，它的系數(shù)是________，次數(shù)是________．

Answer 1

單    -6    4
分析：根據(jù)單項(xiàng)式系數(shù)、次數(shù)的定義來求解．單項(xiàng)式中數(shù)字因數(shù)叫做單項(xiàng)式的系數(shù)，所有字母的指數(shù)和叫做這個單項(xiàng)式的次數(shù)．
解答：式子-6ab²c是單項(xiàng)式，它的系數(shù)是：-6，次數(shù)是4．
故答案是：單，-6，4．
點(diǎn)評：本題考查了單項(xiàng)式的次數(shù)與系數(shù)，確定單項(xiàng)式的系數(shù)和次數(shù)時，把一個單項(xiàng)式分解成數(shù)字因數(shù)和字母因式的積，是找準(zhǔn)單項(xiàng)式的系數(shù)和次數(shù)的關(guān)鍵．